Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            274       245       5.040709   5.89129    5.467896   0.218062   5.440903  
2008            274       245       3.447452   4.177226   3.810777   0.18084    3.800097  
2009            274       245       3.486064   3.914613   3.658621   0.104446   3.641645  
2010            274       245       5.039419   5.382806   5.235293   0.083763   5.242355  
2011            274       245       4.897451   5.324484   5.131883   0.100535   5.139678  
2012            274       245       5.458645   5.770032   5.593482   0.073402   5.588     
2013            274       245       6.262355   6.568935   6.41824    0.068892   6.406032  
2014            274       245       4.070419   4.767774   4.463972   0.170983   4.461387  
2015            274       245       5.33458    6.17571    5.771613   0.205497   5.767355  
2016            274       245       5.647742   6.200387   5.905727   0.129746   5.894484  
2017            274       245       5.554742   6.340516   5.958351   0.193133   5.954613  
2018            274       245       3.260452   4.734935   4.032862   0.377065   4.027613  
2019            274       245       4.144161   4.670613   4.40928    0.115163   4.417097  
2020            274       245       5.537452   5.784613   5.671758   0.061774   5.673097  
2021            274       245       4.049516   5.588097   4.834839   0.372722   4.792774  
2022            274       245       2.914581   4.944484   3.968653   0.501754   3.904516  
2023            274       245       6.025774   6.492161   6.272763   0.103012   6.258613